<template>
  <div>
    <!-- 面包屑导航 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片视图区域 -->
    <el-card>
      <el-row :gutter="20">
        <!-- 搜索框及查找按钮区域 -->
        <el-col :span="8">
          <el-input clearable @clear="getGoodsList" v-model="queryInfo.query" placeholder="请输入内容">
            <el-button @click="getGoodsList" slot="append" icon="el-icon-search"></el-button>
          </el-input>
        </el-col>
        <el-col :span="6">
          <!-- 添加商品按钮 -->
          <el-button type="primary" @click="Addpage">添加商品</el-button>
        </el-col>
      </el-row>

      <!-- 商品table表格区域 -->
      <el-table :data="goodsList" border stripe style="width: 100%">
        <el-table-column type="index" label="#"></el-table-column>
        <el-table-column prop="goods_name" label="商品名称"></el-table-column>
        <el-table-column prop="goods_price" label="商品价格(元)" width="95"></el-table-column>
        <el-table-column prop="goods_weight" label="商品重量" width="70"></el-table-column>
        <el-table-column prop="add_time" label="创建时间" width="140">
          <template slot-scope="scope">
            {{scope.row.add_time | dateFormat}}
          </template>
        </el-table-column>
        <el-table-column label="操作" width="130">
          <template slot-scope="scope">
            <div>
              <!-- 修改按钮 -->
              <el-button type="primary" size="mini" icon="el-icon-edit"></el-button>
              <!-- 删除按钮 -->
              <el-button type="danger" size="mini" @click="removeForId(scope.row.goods_id)"
                icon="el-icon-delete"></el-button>
            </div>
          </template>
        </el-table-column>
      </el-table>

      <!-- 分页区域 -->
      <el-pagination @size-change="handleSizeChange" @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum" :page-sizes="[5, 10, 15, 20]"
        :page-size="queryInfo.pagesize" layout="total, sizes, prev, pager, next, jumper"
        :total="total">
      </el-pagination>
    </el-card>

  </div>
</template>

<script>
export default {
  data () {
    return {
      // 查询参数对象
      queryInfo: {
        query: '',
        pagenum: 1,
        pagesize: 10
      },
      // 商品列表数据
      goodsList: [],
      // 商品总条数
      total: 0
    }
  },
  created () {
    this.getGoodsList()
  },
  methods: {
    // 根据分页获取对应的商品列表
    async getGoodsList () {
      const { data: res } = await this.$http.get('goods', { params: this.queryInfo })
      if (res.meta.status !== 200) return this.$message.error('获取商品列表失败')

      this.goodsList = res.data.goods
      this.total = res.data.total
      console.log(this.goodsList);

    },
    // 监听当前显示的页码的条数并获取
    handleSizeChange (newSize) {
      this.queryInfo.pagesize = newSize;
      this.getGoodsList()
    },
    //监听当前页码值的改变 
    handleCurrentChange (newPage) {
      this.queryInfo.pagenum = newPage
      this.getGoodsList()
    },
    // 根据id 删除商品
    async removeForId (id) {
      const confirmReuit = await this.$confirm('此操作将永久删除该商品, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(err => err)
      if (confirmReuit !== 'confirm') {
        return this.$message.info('已取消删除')
      }
      const { data: res } = await this.$http.delete(`goods/${id}`)
      if (res.meta.status !== 200) {
        return this.$message.error('删除失败')
      }
      this.$message.success('删除成功')
      this.getGoodsList()
    },
    // 点击添加商品按钮 跳转到指定页面
    Addpage () {
      this.$router.push('/goods/add')
    }
  }
}
</script>

<style lang="scss" scoped>
</style>